java导出Excel 玩玩吧!

java 代码

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.axon.fable.sams.view.action;

import java.io.IOException;
import java.io.OutputStream;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import jxl.Workbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.axon.fable.empolderpackage.out.OutJavaScript;
import com.axon.fable.empolderpackage.page.Pager;
import com.axon.fable.empolderpackage.string.MyPublic;
import com.axon.fable.sams.common.BaseAction;
import com.axon.fable.sams.exception.AppBusinessException;
import com.axon.fable.sams.exception.AppSystemException;

/**
 * MyEclipse Struts
 * Creation date: 06-28-2007
 *
 * XDoclet definition:
 * @struts.action path="/axon" name="axonForm" input="/samspage/zm/axon.jsp" parameter="method" scope="request" validate="true"
 * @struts.action-forward name="success" path="/samspage/zm/content.jsp"
 */
public class StshipoperationAction extends BaseAction {
    /*
     * Generated Methods
     */
    private static  Session session=null;
    private static  Transaction ts=null;
    private static  Query queryC=null;
    private static  Query queryR=null;
    private static  Query query=null;

    private static  List list=null;
    private static  Integer startRow;
    private static  Integer ncurrentPage;
    private static  Integer cell;

    private static  String  property;
    private static  String  sql;


    private static  String type;

    private static  String condition ;//是否导出当前页

    private static  String currentPage;
    private static  String from ;




    private static  String pactdata;
    private static  String voyagename;
    private static  String voyageno;
    private static  String dwt ;
    private static  String hirefrom  ;

    private static  String deliveryposion ;
    private static  String redeliveryposion     ;
    private static  String sheepowner ;
    private static  String addr;
    private static  String addcomm;

    private static  String rent;

    private static  String fileName ;
    private static  OutputStream os;
    @Override
    public ActionForward findAll(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public ActionForward findById(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public ActionForward save(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)  {
        // TODO Auto-generated method stub

        return null;
    }
    public static String strNull(Object nullStr,String newStr,Integer cell){


        if(nullStr==null||nullStr.equals("")){return newStr;}else{cell+=1;return nullStr+"";}
    }
    public static String getStr(String str,Integer cell){
        if(str==null||str.trim().equals("")){return "";}else{cell+=1;return ","+str;}
    }
    public static String getExcelTile(String title){
        if(title==null)

        return "";
            if(title.equals("modela.stsid"))
                return "编号";
            if(title.equals("modelc.pactdata"))
                return "合同日期";
            if(title.equals("modela.voyagename"))
                return "航名";
            if(title.equals("modela.voyageno"))
                return "航次";
            if(title.equals("modelc.dwt"))
                return "DWT";

            if(title.equals("modelc.hirefrom"))
                return "受载期";
            if(title.equals("modela.deliveryposion"))
                return "交船地点";
            if(title.equals("modela.redeliveryposion"))
                return "还船地点";
            if(title.equals("modelc.sheepowner"))
                return "联系人";
            if(title.equals("modelc.addr"))
                return "经纪人拥金";

            if(title.equals("modelc.addcomm"))
                return "ADD COMM";
            if(title.equals("modelc.rent"))
                return "租金";
            return "";

    }
    public ActionForward exporVoyagesInfoToExcel(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) {

         list=null;
         startRow=0;
         ncurrentPage=1;
         cell=0;

         type                        =request.getParameter("type");

         condition                   =request.getParameter("condition");//是否导出当前页

         currentPage                 =request.getParameter("currentPage");
         from                        =request.getParameter("from");




         pactdata                    = request.getParameter("modelc.pactdata");
         voyagename                  = request.getParameter("modela.voyagename");
         voyageno                    = request.getParameter("modela.voyageno");
         dwt                         = request.getParameter("modelc.dwt");
         hirefrom                    = request.getParameter("modelc.hirefrom");

         deliveryposion              = request.getParameter("modela.deliveryposion");
         redeliveryposion            = request.getParameter("modela.redeliveryposion");
         sheepowner                  = request.getParameter("modelc.sheepowner");
         addr                        = request.getParameter("modelc.addr");
         addcomm                     = request.getParameter("modelc.addcomm");

         rent                        = request.getParameter("modelc.rent");


        if(type!=null&&type.trim().equals("1")){
            type                ="已还船舶--费用未结清";
        }else{
            type                ="已还船舶--费用已结清";
        }


        property                =getStr(pactdata,cell)+getStr(voyagename,cell)+getStr(voyageno,cell)+getStr(dwt,cell)+getStr(hirefrom,cell)
                                +getStr(deliveryposion,cell)+getStr(redeliveryposion,cell)+getStr(sheepowner,cell)+getStr(addr,cell)+getStr(addcomm,cell)
                                +getStr(rent,cell);
        property                = property.substring(1);
        String split[]          = property.split(",");
//        System.out.println("-----------------------------property:"+property);
        if(currentPage!=null&&!currentPage.trim().equals("")){
                ncurrentPage    =Integer.parseInt(currentPage);
        }else{
                OutJavaScript.outString(response, "Sorry! Failed to get information of pager.");
                return null;
       }



        try {

            session             =getServiceLocator().getBaseHibernateDAO().getSession();
            sql                 ="select count(*) "+from;

            query               =session.createQuery(sql);
            list                = query.list();

               for (int i = 0; i < list.size(); i++) {
               totalSize        =(Integer)list.get(i);
                 if(totalSize!=0){
                    pager       =new Pager(ncurrentPage,totalSize);
                 }
            }

               query            =getServiceLocator().getBaseHibernateDAO().getSession().createQuery("select " +property+from);
                if(condition!=null&&condition.trim().equals("1")){//分页数据
                    startRow    = (ncurrentPage - 1)*pager.getPageSize();
                    query.setFirstResult(startRow);
                    query.setMaxResults(pager.getPageSize());
//                  System.out.println("---------------------------------------------------query:"+query);
                }
             list               = query.list();

        fileName                = "shipInfo";

        os                      = response.getOutputStream();
        response.reset();
        response.setHeader("Content-disposition",
                "attachment; filename=" +fileName + ".xls");
        response.setContentType("application/msexcel");

        jxl.write.WritableWorkbook wbook = Workbook.createWorkbook(os);
        jxl.write.WritableSheet wsheet = wbook.createSheet("the first sheet", 0);

        for (int i = 0; i < split.length; i++) {
            jxl.write.Label wlabel0;
            wlabel0 = new jxl.write.Label(i, 0, getExcelTile(split[i]));
            wsheet.addCell(wlabel0);
        }
        jxl.write.Label wlabel1;
          for(int i=0;i<list.size();i++) {
              if(split.length==1){
                  Object strval = (Object) list.get(i);
                  String javaScript=""+MyPublic.toHtmlStr(strval==null?"":strval.toString().trim())+"";
                wlabel1 = new jxl.write.Label(0, i+1,strval==null?"":strval.toString().trim() );
                wsheet.addCell(wlabel1);
              }else{
                  Object[] strval = (Object[]) list.get(i);
                  for(int j=0;j<strval.length;j++) {
                      String javaScript=""+MyPublic.toHtmlStr(strval[j]==null?"":strval[j].toString().trim())+"";
                      //System.out.println("===================script:"+javaScript);
                    wlabel1 = new jxl.write.Label(j, i+1,strval[j]==null?"":strval[j].toString().trim() );
                    wsheet.addCell(wlabel1);
                 }
              }


          }

        wbook.write();
        response.flushBuffer();
        wbook.close();
        os.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! Export Excel exception.");
            e.printStackTrace();
        } catch (HibernateException e1) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! Database exception.");
            e1.printStackTrace();
        } catch (AppSystemException e1) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! System exception.");
            e1.printStackTrace();
        } catch (AppBusinessException e1) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! Database exception.");
            e1.printStackTrace();
        } catch (RowsExceededException e) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! Export Excel exception.");
            e.printStackTrace();
        } catch (WriteException e) {
            // TODO Auto-generated catch block
            OutJavaScript.outString(response, "Sorry! Export Excel exception.");
            e.printStackTrace();
        }

        return null;
    }

    @Override
    public ActionForward update(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        // TODO Auto-generated method stub
        return null;
    }
}

上面是我程序中用到的一个示例.有什么疑问大家再讨论吧!